About viewController's “viewDidLoad” and “viewWillAppear” methods

Question

I\'ve got a question regarding the two mentioned methods, since in my tests I don´t make clear the order they are called. I thought that, firstly, viewDidLoad i

Answer 1

As you said, ViewDidLoad is only calling once after loading the view. So we can initialize the instances in the viewDidLoad. It is mainly meant for the initialization.

viewWillAppear will invoke whenever we reach to this view. So if there is any changes in UI, we can done it in viewWillAppear.